Shelley Gallivan, right, talks on the phone next to a tipped over Smart car which belongs to her friend. / Jeff Chiu, AP

by Lindsay Deutsch, USA TODAY

by Lindsay Deutsch, USA TODAY

San Francisco police are looking for the people who turned over four Smart cars in two neighborhoods Monday morning.

The tiny, eco-friendly cars were found balanced on their headlights, rear bumpers or on their sides, with shattered windows and some body damage. All four were found between 1 a.m. and 9 a.m. in the Bernal Heights and Portola neighborhoods.

It is unclear whether the acts were a cow tipping-esque prank, a vindictive act or a statement about tech culture in San Francisco and the city's subsequent rise in the cost of living.

"It's hard to determine a motive without any suspects identified or in custody," police spokesman Gordon Shyy told the Associated Press.

Shyy says the bizarre acts are being taken seriously and the culprits could face felony vandalism charges.The police have an eyewitness and are looking for multiple people wearing black hooded sweatshirts who were around the area during the time of the incidents.

Overturning Smart cars gained notoriety in 2011 with the Facebook parody page Smart Car Tipping, where vandals and witnesses from as far as Toronto have documented the offbeat but destructive act.